package api;

import cn.hutool.core.util.StrUtil;
import cn.hutool.json.JSONUtil;
import lombok.SneakyThrows;
import model.UserInfo;
import util.AppVar;
import util.DBUtils;
import util.ResultUtils;
import util.SessionUtils;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import java.io.IOException;
import java.sql.Connection;
import java.sql.PreparedStatement;

/**
 * @Author: wenjingyuan
 * @Date: 2023/03/29/17:23
 * @Description:
 */
@WebServlet("/addart")
public class AddArtServlet extends HttpServlet {
    @SneakyThrows
    @Override
    protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        UserInfo userInfo= SessionUtils.getLogInUser(req);
        String msg="未知错误！";
        int data=0;
        if(userInfo!=null){
        //从前端得到参数并进行非空校验
        String title=req.getParameter("title");
        String context=req.getParameter("context");
        if(!StrUtil.isBlank(title) && !StrUtil.isBlank(context)){
                //当前用户出于登录状态
                Connection connection= DBUtils.getConnection();
                String sql="insert into article(title,context,uid) values(?,?,?)";
                PreparedStatement statement=connection.prepareStatement(sql);
                statement.setString(1,title);
                statement.setString(2,context);
                statement.setInt(3,userInfo.getUid());
                data=statement.executeUpdate();
                //关闭资源
                DBUtils.close(null,statement,connection);
                msg="成功";

        }else{
            msg="非法参数！";
        }
        }else{
            msg="请先登录";
        }

        //将数据插入数据库
        //结果返回给前端
        resp.setContentType("application/json;charset=utf-8");
        resp.getWriter().println(JSONUtil.toJsonStr(ResultUtils.toResult(200,data,msg)));
    }
}
